Where can I find VGA-to-USB adapters?

I'm a laptop user and don't want to buy a monitor anytime soon. I also have a an old stationary computer that I'd like to have a closer look at, and imagine that I could use the laptop screen and some program to render the VGA output from the stationary computer in a window on the desktop of my laptop. I assume that there exists some kind of USB device that decodes VGA and lets a program route the output to a device context on Windows. Question is, where can I find one (in Europe would be ideal)?

I'm using 64-bit Windows 7.

Solution 1:

epiphan VGA2USB devices are able to do this.